CN113133029B - Configuration method for measuring Gap - Google Patents
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- CN113133029B CN113133029B CN202110258323.0A CN202110258323A CN113133029B CN 113133029 B CN113133029 B CN 113133029B CN 202110258323 A CN202110258323 A CN 202110258323A CN 113133029 B CN113133029 B CN 113133029B
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Abstract
The invention discloses a configuration method for measuring GAP. The method comprises the following steps: step 1, determining an SMTC window according to configuration information of a base station: step 2, determining an effective value of GapOffset, namely the initial position of the GAP window; and 3, selecting a proper GapOffset for the UE from the effective GapOffset set. The invention has the following advantages: the measurement GAP allocated to the UE and the resources allocated to the UE can be guaranteed to be free from conflict in a priority mode to the maximum extent; according to the weight of each resource, the importance degree of each resource is flexibly defined, and the important resource is ensured not to be influenced by the measurement GAP, so that the influence on the user is reduced to the maximum extent.
Description
Technical Field
The invention belongs to the technical field of mobile communication, and particularly relates to a configuration method for measuring Gap (Gap).
Background
Currently, in an NR (New Radio, new air interface) system, a User Equipment (UE) needs to measure a neighboring cell so as to facilitate switching or redirection of the UE, the Measurement includes inter-frequency Measurement and inter-system Measurement in the NR system, when the UE performs the Measurement, a special Measurement Gap (Measurement Gap) is needed, and in the Measurement Gap, the UE specially measures the neighboring cell without transmitting other data information. When the resources (sr resource, csi-rs resource, srs resource) configured to the UE are located in the measurement time window of Gap in the time domain, when the UE performs inter-frequency/inter-system measurement, it will be impossible to transmit corresponding information on these resources, thereby affecting the user experience. The NR protocol introduces an RRM measurement time configuration window based on SSBs (SS/PBCH block composed of synchronization signal SS and physical broadcast channel PBCH), called Smtc window, through which the UE obtains the measurement period and time of all SSBs, and in order to be able to measure the SSBs of the inter-frequency cell, it is necessary to ensure that the Smtc window is included in the Gap window.
In the prior art, a prior art solution provided by patent application with patent publication number CN106332118 is: when the UE determines that a resource conflict exists between a scheduling request sr sending resource position of a current cell and a measured Gap resource position, marking the current cell, and performing Radio Resource Control (RRC) reconstruction according to a preset reconstruction rule; the mark represents that the current cell is forbidden in a certain time, and the UE does not select the current cell when performing cell selection in the certain time; the method only provides a solution for the conflict between sr resources and Gap resources, and is limited to an LTE system; in addition, the scheme of the patent application solves the resource conflict in an RRC reestablishment mode, and the reestablishment process can cause service interruption of the UE.
Disclosure of Invention
The invention aims to provide a method for configuring measurement Gap, which can avoid the conflict between resources allocated to UE and the measurement Gap resources to the maximum extent, and the method comprises the following steps:
step 1, determining an Smtc window according to configuration information of a base station:
the Smtc window consists of the period of occurrence of the Smtc window, offset, namely the starting position of the Smtc window in a system frame, and window length, namely the Smtc window length, wherein one Smtc window is described as [ SmtcOffset, smtcOffset + SmtcWindowLen-1], wherein the SmtcOffset is the Smtc offset, and the SmtcWindowLen is the Smtc window length;
step 2, determining the effective value of GapOffset, namely the initial position of the Gap window: the effective value is all GapOffset contained in a Smtc window in a Gap period, the effective value range of the GapOffset is determined by the mgrp of the Gap period, and the value range of the GapOffset is [0, mgrp-1]:
step 2.1, calculating the number N of Smtc periods contained in a Gap period, wherein N = mgrp/SmtcPeriod, and the SmtcPeriod is the Smtc period;
step 2.2, calculating all Smtc windows contained in the Gap period, wherein the Smtc windows are [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], and the value range of i is [1,N ];
step 2.3, determining whether each GapOffset in the Gap period is contained in an Smtc window [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], wherein the GapOffset is an effective value when the GapOffset is contained in the Smtc window;
and 3, selecting proper GapOffset for the UE from the effective GapOffset set:
step 3.1, counting the times of the sr resource, the csi-rs resource and the srs resource appearing in a Gap time window starting from each effective GapOffset in a Gap period according to the sr resource, the csi-rs resource and the srs resource configured to the UE, and respectively marking as NumSR, numCi, numSiRs and NumSRs;
step 3.2, calculating the weight 1 of each effective GapOffset, and recording the weight as F1, wherein the calculation formula is shown as the following formula (1):
F1＝δ sr *NumSr*MIN(T sr mgrp)+δ csi *NumCsi*MIN(T csi ，mgrp)+δ srs *NumSrs*MIN(T srs ，mgrp)+δ csi-rs *NumCsiRs。MIN(T csi-rs ，mgrp).....(1)
in the formula (1), T is a period corresponding to sr resources, csi-rs resources and srs resources, and delta is a weight corresponding to sr resources, csi-rs resources and srs resources, and can be specified according to the importance degrees of sr resources, csi-rs resources and srs resources, when F1 is calculated, the algorithm defaults to specify delta values of sr, csi, srs and csi-rs to be 1, 1 and 16 respectively;
step 3.3, calculating the weight 2 of each effective GapOffset, and marking the weight as F2, wherein the calculation formula of the F2 is the same as the formula (1) for calculating the F1, except that the delta default values of sr, csi, srs and csi-rs are respectively 2, 3, 1 and 0;
step 3.4, selecting GapOffset according to the values of F1 and F2, wherein the selection method comprises the following steps: preferably selecting GapOffset with the minimum F1 value; when a plurality of GapOffsets with the smallest F1 exist, selecting the GapOffset with the smallest F2 from the GapOffsets with the smallest F1; when there are a plurality of gapoffsets having the smallest F2 in the F1 minimum set, the GapOffset value is selected as the smallest among the gapoffsets.
The method has the following advantages:
1. the method can ensure that the measurement Gap allocated to the UE and the resource allocated to the UE do not conflict with each other to the maximum extent;
2. the method can flexibly define the importance degree of each resource according to the weight of each resource to ensure that the important resource is not influenced by the measured Gap, thereby reducing the influence on the user to the maximum extent.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic representation of the relationship between measured GapGap windows and Smtc windows according to the methods of the invention;
fig. 3 is a schematic diagram of calculating the effective value of GapOffset according to the method of the present invention.
Detailed Description
In the following detailed description of embodiments of the invention, reference is made to the accompanying drawings, in which the method of the invention comprises the steps of:
step 1, determining an Smtc window according to configuration information of a base station:
the Smtc window consists of the period and offset of the Smtc window, namely the initial position of the Smtc window in a system frame, and the window length, namely the Smtc window length, wherein one Smtc window is described as [ SmtcOffset, smtcOffset + SmtcWindowLen-1], the SmtcOffset is the Smtc offset, and the SmtcWindowLen is the Smtc window length;
step 2, determining the effective value of GapOffset, namely the initial position of the Gap window: the effective value is all GapOffset contained in the Smtc window in the Gap period, the effective value range of the GapOffset is determined by the Gap period mgrp, and the value range of the GapOffset is [0, mgrp-1]:
step 2.1, calculating the number N of Smtc periods contained in a Gap period, wherein N = mgrp/SmtcPeriod, and the SmtcPeriod is the Smtc period;
step 2.2, calculating all Smtc windows contained in the Gap period, wherein the Smtc windows are [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], and the value range of i is [1,N ];
step 2.3, determining whether each GapOffset in the Gap period is contained in an Smtc window [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], wherein the GapOffset is an effective value when the GapOffset is contained in the Smtc window;
and 3, selecting proper GapOffset for the UE from the effective GapOffset set:
step 3.1, counting the times of the sr resource, the csi-rs resource and the srs resource appearing in a Gap time window starting from each effective GapOffset in a Gap period according to the sr resource, the csi-rs resource and the srs resource configured to the UE, and respectively marking as NumSR, numCi, numSiRs and NumSRs;
step 3.2, calculating the weight 1 of each effective GapOffset, and marking as F1, wherein the calculation formula is shown as the following formula (1):
F1＝δ sr *NumSr*MIN(T sr ，mgrp)+δ csi *NumCsi*MIN(T csi ，mgrp)+δ srs *NumSrs*MIN(T srs ，mgrp)+δ csi-rs *NumCsiRs*MIN(T csi-rs ，mgrp).....(1)
in the formula (1), T is a period corresponding to sr resources, csi-rs resources and srs resources, and delta is a weight corresponding to sr resources, csi-rs resources and srs resources, and can be specified according to the importance degrees of sr resources, csi-rs resources and srs resources, when F1 is calculated, the algorithm defaults to specify delta values of sr, csi, srs and csi-rs to be 1, 1 and 16 respectively;
step 3.3, calculating the weight 2 of each effective GapOffset, and marking the weight as F2, wherein the calculation formula of the F2 is the same as the formula (1) for calculating the F1, except that the delta default values of sr, csi, srs and csi-rs are respectively 2, 3, 1 and 0;
step 3.4, selecting GapOffset according to the values of F1 and F2, wherein the selection method comprises the following steps: preferably selecting GapOffset with the minimum F1 value; when a plurality of GapOffsets with the smallest F1 exist, selecting the GapOffset with the smallest F2 from the GapOffsets with the smallest F1; when there are a plurality of gapoffsets having the smallest F2 in the F1 minimum set, the GapOffset value is selected as the smallest among the gapoffsets.
In a specific embodiment, fig. 1 is a schematic flow chart of the method of the present invention, and as shown in fig. 1, the flow chart includes the following steps:
step 1: determining an Smtc window according to the configuration information of the base station, and assuming that the period Smtcperiod of the Smtc window is 20ms, the window length SmtcDuration is 2ms, and the SmtcOffset offset is 0;
step 2: determining an effective value of GapOffset; assuming that the configuration of Gap adopts the configuration of Gap Pattern Id being 0 (the first row of table one), it can be determined that the period mgrp of Gap is 40ms, and the window length mgl of the measured Gap is 6ms; therefore, it can be determined that the value range of GapOffset is [0, 39]; measuring the frequency modulation duration of UE (user equipment) required to be contained in a Gap window, namely the time when the UE is switched to a measurement frequency point and the time when the UE leaves the measurement frequency point, wherein the frequency modulation duration is set to be 0.5ms, so the first 0.5ms and the last 0.5ms of the Gap window are used for frequency modulation, an effective Gap window really used for measurement is the middle 5ms, and the lead mgta for starting the measurement Gap is 0.5ms, as shown in figure 2;
the GapOffset corresponding to the Gap effective window which can completely contain the Smtc window is effective GapOffset; as shown in fig. 3, according to the above configuration, the effective GapOffset is {0, 17, 18, 19, 20, 37, 38, 39};
and step 3: selecting proper GapOffset for the UE from the effective GapOffset set; the frequency of occurrence of the resource allocated by the UE in the Gap window corresponding to each GapOffset and the calculated F1 and F2 values are assumed to be shown in a table II;
watch 1
According to the selection rule of GapOffset, the UE is selected 17, in which case the Gap window does not contain any other resources configured to the UE.
Watch two
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present disclosure should be covered within the scope of the present invention claimed in the appended claims.
Claims (2)
1. A configuration method for measuring Gap is characterized by comprising the following steps:
step 1, determining an Smtc window according to configuration information of a base station:
the Smtc window consists of the period of occurrence of the Smtc window, offset, namely the starting position of the Smtc window in a system frame, and window length, namely the Smtc window length, wherein one Smtc window is described as [ SmtcOffset, smtcOffset + SmtcWindowLen-1], wherein the SmtcOffset is the Smtc offset, and the SmtcWindowLen is the Smtc window length;
step 2, determining the effective value of GapOffset, namely the initial position of the Gap window: gapOffset corresponding to a Gap valid window which can completely contain a Smtc window is valid GapOffset, the valid value range of the GapOffset is determined by a Gap period mgrp, and the value range of the GapOffset is [0, mgrp-1];
and 3, selecting proper GapOffset for the UE from the effective GapOffset set:
step 3.1, counting the times of the sr resource, the csi-rs resource and the srs resource appearing in a Gap time window starting from each effective GapOffset in a Gap period according to the sr resource, the csi-rs resource and the srs resource configured to the UE, and respectively marking as NumSR, numCi, numSiRs and NumSRs;
step 3.2, calculating the weight 1 of each effective GapOffset, and recording the weight as F1, wherein the calculation formula is shown as the following formula (1):
F1＝δ sr *NumSr*MIN(T sr ，mgrp)+δ csi *NumCsi*MIN(T csi ，mgrp)+δ srs *NumSrs*MIN(T srs ，mgrp)+δ csi-rs *NumCsiRs*MIN(T csi-rs ，mgrp) (1)
in the formula (1), T is a period corresponding to sr resources, csi-rs resources and srs resources, and delta is a weight corresponding to sr resources, csi-rs resources and srs resources, and can be specified according to the importance degrees of sr resources, csi-rs resources and srs resources, when F1 is calculated, the algorithm defaults to specify delta values of sr, csi, srs and csi-rs to be 1, 1 and 16 respectively;
step 3.3, calculating the weight 2 of each effective GapOffset, and marking the weight as F2, wherein the calculation formula of the F2 is the same as the formula (1) for calculating the F1, except that the delta default values of sr, csi, srs and csi-rs are respectively 2, 3, 1 and 0;
step 3.4, selecting GapOffset according to the values of F1 and F2, wherein the selection method comprises the following steps: preferably selecting GapOffset with the minimum F1 value; when a plurality of GapOffsets with the smallest F1 exist, selecting the GapOffset with the smallest F2 from the GapOffsets with the smallest F1; when there are a plurality of gapoffsets having the smallest F2 in the F1 minimum set, the GapOffset value is selected as the smallest among the gapoffsets.
2. The method according to claim 1, wherein the step 2 comprises the following steps:
step 2.1, calculating the number N of Smtc periods contained in a Gap period, wherein N = mgrp/SmtcPeriod, and the SmtcPeriod is the Smtc period;
step 2.2, calculating all Smtc windows contained in the Gap period, wherein the Smtc windows are [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], and the value range of i is [1,N ];
and 2.3, determining whether each GapOffset in the Gap period can completely contain the Smtc window [ SmtcOffset i, smtcOffset i + SmtcWindowLen-1], and if the GapOffset can be completely contained, the GapOffset is an effective value.
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